It's great to hear that this is universal.
I have a wife, two small boys, house, job and all that goes with that. For me, there's also something else that slows me down for some reason.
I have a pile of kits on the shelf and on the bench in various states of completion. My stuG in the group build is a perfect example of my problem: I bought this kit at AMPS East. Even with a bench full of stuff I couldn't wait to start it for some reason. Nothing in my schedule had changed, but I found some time to build for 4 days straight. Blew this thing together, basecoated, got the indies on and now I can't motivate myself to finish it.
Right now I have 2.5 hours to myself, completely unheard of, and I'm here online instead on building. I don't know why, but I am.
Last spring, I couldn't wait to get the Tamiya 1/16 Tiger I and M4. picked up two Radios, batteries everything. Built both kit hulls and then stopped. Every so often, me and the boys will break out the hulls and drive them around the house saying, 'how cool will these be when done', but I never work on them.
I gotta go, finish something...